Where UIX sits relative to the two families (headless behavior: Radix/Ark/bits/
React Aria; styled systems: Mantine/Chakra/Radix Themes/shadcn), grounded in
UIX's own documented design choices rather than claims about competitors'
internals:
- morfo as a single declarative contract (compile-time drift),
- a perception layer (sema) neither family has,
- two-moment motion, theme-as-retint, validated token scope, graceful
degradation,
- and the honest trade-offs (more to learn, smaller ecosystem, sema only pays
off if used).
The one competitor-specific claim (Chakra collapses presence onto one axis) is
sourced in eidos-motion.md. Per-component prop-parity comparisons stay in each
component README, by doctrine. Wired into docs/README.md.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
dev